Essam el-Erian, deputy chairman of the Freedom and Justice Party, the Brotherhood's political wing, was taken into custody Wednesday on charges of inciting violence and aiding criminal acts. He was hiding out in a residence in New Cairo in the eastern sector of the city. He had managed to avoid arrest till now.

Egypt's interim government has arrested an estimated 2,000 Brotherhood members since the ouster of Islamist President Mohammed Morsi last July.

From his hiding place, Erian urged the Brotherhood's followers to continue protesting Morsi's ouster, demand his reinstatement and denounce the interim government

Since his arrest, Morsi has been held at an undisclosed location. He is due to appear in court on Nov. 4.